The Mastic Doctor team standing beside their branded vans outside an office building
Na h-Eileanan Siar · Scotland

Coloured Sealant contractors in North Lochs

Sealant work in North Lochs for main contractors, managing agents and facilities managers: coloured and colour-matched sealant for visible joints, with a fixed quote first.

  • Fit-outs with a sealant colour in the specification
  • Marked sealant in hotel bathrooms
  • Failed coloured sealant that has split or peeled
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m PL insurance

Coloured sealant near North Lochs

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

About our coloured sealant in North Lochs

A colour-matched bead still has to work as a seal. Faces are prepared, depth is fixed with rod and the bead is tooled onto two sides only, exactly as for a standard colour. Careful masking keeps the edges crisp. If you are dealing with sealant that no longer suits recoated frames and stained or mouldy coloured joints in washrooms, we can put it right, on office fit-out finishes, cladding panels and shop-fit joinery and counters alike. Facilities teams, main contractors and managing agents in North Lochs tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

In smaller Scottish places like North Lochs, commercial buildings are often hotels, pubs, shops, schools, surgeries and farm or estate buildings put to new use. Each has kitchens, washrooms and frames that depend on sound joints.

Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
North Lochs (HS2)
Wider area
Na h-Eileanan Siar
Cover
12 months on our workmanship
Price
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026

Our process

Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Tell us who will meet us and how to get in at your building near North Lochs. We’ll confirm the plan with the fixed quote.

  1. First we agree which sealant type the joint needs.
  2. Your RAL reference, sample or photo is checked against that product’s colours.
  3. The nearest colour is agreed, with a sample bead where needed.
  4. The existing bead comes out, then faces are cleaned and backed.
  5. We mask, seal and tool to a clean line.
  6. We remove the masking and walk the finished joints with you.

Getting the site ready

  • Share the asbestos register for older buildings
  • Confirm the product named in the specification
  • Send your site hours and access windows

Request a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to phone 01277 525 020 or use the quote form with what you know.

Ask for a quote

Advice

Different surfaces, different methods

Cladding panels

Multi-coloured cladding needs a joint colour that works across it. A neutral tone from the range often works best, and a sample settles it.

Office fit-outs

Office joinery and frames usually follow a colour scheme. We choose sealant colours to suit as specified.

Building owners, agents and FMs in North Lochs

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in North Lochs can sit alongside others in a wider programme across Na h-Eileanan Siar.

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

Your questions answered

Our building in North Lochs is near the coast: does that change the sealant?

It can. Coastal exposure works external joints harder than inland weather. We check the specified product suits the exposure and pay close attention to preparation.

Can you take on a job in North Lochs, on the island?

Yes. Islands are part of our area, North Lochs included. We group island work where we can and plan around the crossings.

Do you need to see the site first?

Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit before quoting.

Are you CHAS accredited?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

What if there’s asbestos in the old mastic?

The duty to manage asbestos sits with the building’s dutyholder, so for older buildings we ask for the asbestos register first. Work pauses if suspect material is found, until it has been tested.

How long do sealant joints last?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

Does weather matter for sealant work?

Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

Leave it or put it right?

Resealing a full run gives a consistent colour. Small repairs at different times rarely match. In Scotland, wind-driven rain finds a failed joint quickly, and for a smaller place like North Lochs, a repair visit takes planning, so it’s better to act early.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Why us?

  • 12 months’ guarantee on every job
  • Constructionline member
  • CSCS-carded applicators
  • Public liability insurance in place

Read our cost guide and our accreditations.

Quoting for work in North Lochs

The price varies from site to site. Expect it to depend on:

  • Travel to remote or island sites
  • The product specified
  • Removal of failed or old sealant
  • How accessible the joints are

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

Before you send an enquiry

Whether it’s one area or a whole building, these details speed things up:

  • Rough lengths or quantities, or drawings if you have them
  • Specification clauses that apply
  • When you need the work done
  • Photos of the joints, close up and from further back

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, call 01277 525 020 or send photos by email.

Sealant on show in North Lochs’s commercial buildings

North Lochs sits close to the coast, within about 1 mile. Buildings near the sea put their external joints through more driven rain, with salt air nearer the beach. We choose a product rated for the exposure, then confirm the colours available for it. For an island location such as North Lochs, work is planned around ferry crossings and the weather. Colour references and photographs up front let us bring the right sealants first time.

Whatever the building in North Lochs, commercial sealant work starts with cutting out the failed bead and cleaning the joint back to sound material. Where a joint is on show in North Lochs, we’ll check which shades the product offers before work starts.

North Lochs is about 6 miles south-west of Stornoway, in Na h-Eileanan Siar. Looking for coloured sealant in North Lochs? We can help, as we do across Na h-Eileanan Siar. 87 places across Na h-Eileanan Siar fall within our area, including North Lochs.

We cover the HS2 postcode districts for colour-matched joints. Sites close to North Lochs are covered too, including Crosbost (1 mile east), Liurbost (1 mile west), Lacasaidh (4 miles south-west), Marybank (5 miles north) and Stornoway (6 miles north-east). For island and remote sites, travel and materials need planning ahead, so include the location in your enquiry.

What’s near North Lochs

Other landmarks nearby include Western Isles Hospital (6 miles north-east). The countryside around North Lochs includes Nisreaval and Loch na Craoibhe.

Map of North Lochs © OpenStreetMap contributors

What we can’t put right

Before quoting, we check that sealant is the right answer. It isn’t the answer for:

  • Paintable products in joints they aren’t suited to
  • Exact bespoke colour matches beyond the product’s range
  • Restoring stained stone or masonry next to old sealant

Not sure which it is? You can give us a call on 01277 525 020 or send details through our quote form and we will tell you honestly before you book.

What we seal

  • Office fit-out finishes
  • Cladding panels
  • Natural stone and brick
  • Powder-coated and anodised frames
  • Shop-fit joinery and counters
  • Hotel bathrooms and public areas
Accreditations

Trusted. Accredited. Insured.